[time-nuts] Any experienced HP 2804A thermometer users out there?

[Brooke Clarke]

Hi Poul:

I used a Barnes IR device that had a very small spot size (worked like a 
microscope) to try and measure the temperature of components on a board, but 
the emissivity varied all over the place so could not get temperatures unless 
everything was painted black.  Especially hard to measure were devices in metal 
packages that were essentially mirrors.

Have Fun,

Brooke Clarke
http://www.prc68.com

Poul-Henning Kamp wrote:
> In message <a06240501c5a0f2095ed9@[192.168.0.24]>, David Forbes writes:
> 
>> I had to do PC board temperature monitoring a few years ago, 
> 
> These days, nothing beat a thermal imager.
> 
> I have the low-end "Satir Hotfind" camera and it makes it so much
> easier to spot any kind of thermal problems in electronics.
> 
> 
> Now, on the other hand, if we are talking about temperature control,
> then I would envy Johns HP2804A and would probably not bother with
> trying to measure the PCB temp, but instead plunk the entire thing
> and the probe into a suitable isolated oilbath :-)
>